The All'en Trail is a trail race held in October in Allan, a village in the Drôme Provençale region of southeastern France. Participants can select from two natural-trail loops: a 23 km route with approximately 800 meters of elevation gain and a 12 km route with approximately 400 meters of elevation gain. The event also features a children's race on the original village grounds, ensuring the day caters to more than just adult trail runners.
The courses traverse the protected countryside surrounding Allan, with the historic ruined village perched on the heights serving as a local landmark. Club 26 Allan, supported by local volunteers, organizes the race. The event provides aid stations, changing facilities, timing services, and an optional app for live GPS tracking, allowing friends to follow participants. The race is characterized as welcoming and approachable, emphasizing running on natural paths in Drôme Provençale over a large-city road-race ambiance.